Youtube Video – Cleaning a GNResound Alera Open Fit Hearing Aid Youtube Video – Cleaning a GNResound Alera Open Fit Hearing Aid September 2, 2011 Emily Cleaning a GNResound Alera Open Fit Hearing Aid – Harmony Hearing Emily September 2, 2011 Categories:GN ReSound, Harmony Hearing, Hearing Aid Manufacturers, Hearing Aids & Technology